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    • Characterization of Defects by Non-Destructive Impulse Excitation Technique for 3D Printing FDM Polyamide Materials in Bending ModePeer reviewedOpen access 

      25 juillet 2025, Jabri, Fatima-Ezzahrae; Ochana, Imi; Ducobu, François; El Alaiji, Ra; DEMARBAIX, Anthoninorcid-id, HE Condorcet
      Article scientifique
      Abstract : "The presented article analyzes the impact of internal defects on the modal responses of polyamide parts subjected to bending. Samples with defects of various sizes (0, 3, 5, 7, and 10 mm) located at the neutral bending line were tested. Modal properties were measured via an acoustic and a vibration sensor, using impulse excitation and fast Fourier transform (FFT) analysis. Modal properties ...

    • Powder heating temperature, laser power and layer height in SLS 3D printing: impact on physical and mechanical properties of polyamide 12 partsPeer reviewedOpen access 

      17 novembre 2025, Jabri, Fatima-Ezzahrae; Ouballouch, Aissa; El Maguiri, Mohamed Nawfal;  Essoussi, Hamza; Lasri, Larbi; DEMARBAIX, Anthoninorcid-id; El Alaiji, Rachid, HE Condorcet
      Article scientifique
      Abstract : "In this paper, physical and compression properties of 3D printed polyamide 12 (PA12) cylindrical parts are evaluated, and the impact of process parameters on these properties was analyzed. Within these parameters, a novel parameter is studied, powder heating temperature before printing, in order to examine its indirect effect on 3D parts. Firstly, compression samples were prepared by ...